Advising clients on the fine line between legitimate co-operation and illegal collusion has always been one of the most difficult tasks for competition lawyers, possibly second only to defending a company under investigation for participating in an illicit cartel. This new volume provides clear guidance to lawyers, academics, and business leaders alike on these issues, analyzing in considerable detail not only the law involved, but also the practical issues of dealing with the European Commission in such cases. It covers all aspects of agreements concluded between competitors, ranging from illegal price-forming to co-operative joint ventures and joint purchasing/selling.Ëœ